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10-19-2012, 09:50 AM #11CelicaSupra.com Member
- Join Date
- Jan 2010
- Pittsboro, NC
once again, well said.
the main reason i dont like them is that it really sucks when the water lines leak under the intake manifold. after fixing a very slow weeping drip on a few different occasions i just decided to cap them off underneath. i cant speak as to how it has affected my milage but its not leaking anymore.
also a lot easier to assemble the intake manifolds IMO.The Supra is gone... What a fun project!
Living the Wagon Life! 86 X72.
New family member, 89 MX83. (temporary DD)
10-19-2012, 12:05 PM #12
I've never hooked them back up, once I had them off. One of those silly N/A mods, in my mind. "Oooh, I gained .5 hp!" Also, I have driven the car in 0*F weather without issue.
10-19-2012, 07:11 PM #13
I read that whole post on that mazda forum and OH-MY-GOD! What a bunch of TOOLS! Thank God we don't sound like that!
Reminds me of a bunch of 12-year-olds gathering around the engine bay, "yeah man! That's an awesome idea!"
Of course it is. Auto manufactures spend millions in R&D every year to add dumb shit to the car for no reason/performance/economy. Lol.
I love shit like that. Makes me feel like a friggin einstein!84 supra 7mgte 57trim, mostly stock...for now...
Sexy-ass strut bars, soon to come "one-off billet grill"
04 Tacoma on 32" bfg
'95 gmc suburban (family bus)
10-19-2012, 10:34 PM #14CelicaSupra.com Member
- Join Date
- Jan 2011
- Grottoes, Virginia
I just deleted this on my car. I simply put caps on the in & out on the throttle body Then made a block off plate for the bottom. Super simple I'll get some pics tomorrow if i think about it.
10-22-2012, 01:01 PM #15CelicaSupra.com Member
- Join Date
- Mar 2003
- Clifton NJ
There's loads of turbulence in the air passing thru the tb due to the cross sectional shape change just before the tb in a stock setup. This mod has been reported on this forum many, many times without incident. I did this mod more than 100Kmi ago without any problems. There may be some very small power gain if used in conjunction with cai.84 mt 6mge with intake, exhaust, suspension, brake, and wheel mods
85 mt 6mge stock
10-22-2012, 01:42 PM #16
10-23-2012, 03:59 AM #17
will do this. also because the tubes are rusted dont want any pieces of metal going all over.1984 Toyota Supra 5MGE
11-23-2012, 12:16 AM #18
This coolant bypass is one of those "free mods" to get all the power you can...similar to blocking off the egr. Although not exactly ground breaking power, it does help keep your air cool with a cold air intake and is worth doing from a performance reason.
and just to show Im not BSing... Heres a log sample, 20 psi. The IAT is Intake Air Temp
RPM Deg IAT WBo2 AFR PSIest MAP TPS Knock Coolant
6250 11 53 11.3 10.8 19.7 20.3 100 0 174
6303 12 53 11.2 10.8 21.1 20.1 100 0 174
6399 12.4 53 11.2 10.8 20.8 21.5 100 0 174
6454 12.4 53 11.2 10.8 20.6 21.3 100 0 174
6545 12.4 53 11.1 10.8 20.6 19.4 100 0 174
Last edited by mk2 supra; 11-23-2012 at 06:11 PM.7mgte, p type convert w/ digi dash, w58 (for now)
Drift/Drag/Street Build thread-http://forums.celicasupra.com/showthread.php?t=55431
11-23-2012, 09:02 PM #19CelicaSupra.com Member
- Join Date
- May 2003
- Mt Vernon, MO
Even if your intercooled intake air temp is lower than coolant temperature (and I stand corrected on that), it doesn't change the fact that the ideal situation is still cool dense intake air travelling quickly over a heated surface. A heated throttle body is still better because the air moves over it quicker and with less turbulence and isn't there long enough to heat up. A cooler throttle body induces turbulence as it slows the flow of air more along the edges than in the center, resulting in less air getting into the cylinders.
Both of these mods reduce functionality of the system in favor of a cleaner engine bay, and have no other purpose.Jan. 1982 Blue 'P' type - DD, 6MGE intake/exhaust/17"SquareWheels, etc.
1982 Terra Cotta 'P' type - 1UZFTE slowly progressing (high comp/low boost corner carver)
1983 Black P - Rust Weight Reduction Mod :P +400k and in donor status
1984 Red L - Fixing to make a come-back!
11-25-2012, 04:04 AM #20
I think there is a slight gain to be had from not having the egr cooler, or a tube that is heated from the exhaust pressure, etc. Just the same as removing the coolant lines. So not much of a gain really.
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